Robert haberthur



(No Model.)

R. HABERTHUR.

SEAL FOR HYDRAULIC MAINS.

No. 400,333. I I Patented Mar. 26, 1889-.

WITNESSES:

ATTORNEK.

NITED STATES ATENT OFFICE.

ROBERT HABERTHUR, OF NEW YORK, N. Y.

SEAL FOR HYDRAULIC MAINS.

SPECIFICATION forming part of Letters Patent No. 400,333, dated March26, 1889.

Application filed December 8, 1888. Serial No. 293,032. (No model.)

To all whom it may concern-.-

Be it known that I, ROBERT HABERTHI'J'R, of the city, county, and Stateof New York, a citizen of the United States, have invented certain newand useful Improvements in Seals for Hydraulic Mains, of which thefollowing is a specification.

This invention relates to an improved seal for the dip-pipes ofhydraulic mains, whereby the dip-pipes may be sealed in the usual mannerwhen the retorts are being charged or the dip pipe unsealed Whenever thefree escape of gases generated in the retorts is desired; and theinvention consists of a hydraulic main in which the dip pipes enterthrough the bottom of the main and above the level of the liquid in thesame, and of an inverted sealing-cap that extends over the upper openend of the dip-pipe, and can be raised or lowered by a U-shaped rodpassing through a guide-pipe, the lower end of which is sealed in themain,said rod being operated by a lever pivoted to the upper end of therod, which rod is held higher or lower by means of a friction-spring.

In the accompanying drawings, Figure 1 represents a front View of abench of gas-retorts with my improved seal for hydraulic mains arra'igedin connection therewith. Fig. 2 is a vertical longitudinal section of myimproved seal for the dip-pipes of hydraulic mains. Fig. 3 is a verticaltransverse section of the same on the line 00 00, Fig. 2.

Similar letters of reference indicate corresponding parts.

A A in the drawings represent the retorts of the gas-bench; B B, thedip-pipes, which connect the retorts with the hydraulic main 0, saiddip-pipes entering the main through the bottom of the same, as shown inthe drawings. The dip-pipes B have their upper sections made angular, soas to make connection between the vertical section of the dippipes andthe bottom of the hydraulic main, and said pipes are each provided atone angle with a detachable lid, B, on the under side, which lid isretained and held in position by a suitable clamping device, B

I the dip-pipe B extends above the level of the liquid in the main, andis removed by an inverted sealing-cap, D, which can be raised or loweredinto the liquid. by means of a U- The end of V shaped rod, E, that isguided in a fixed pipe, F, which is screwed into the top of the main 0,said rod being pivoted to a lever, F, which or ears F on the rear of thehydraulic main 0, as shown in Fig. 3. The front end of the lever F isoperated by means of any suitable handle, (not shown,) by which thelever, and thereby the sealing-cap, can be raised or lowered. The leverand sealing-cap are retained in the raised or lowered position by meansof a friction-spring, H, that is attached to the pivot of the lever Fand U-shaped rod E, the free end of the spring bearing on the innersurface of the guide-pipe F, as shown in Fig. 2. Whenever the lid of theretort is opened, so as to charge the same, the sealingcap is loweredinto the liquid in the main, and thereby the hydraulic seal established,so that no air can pass through the retort in the hydraulic main. Whenthe retort is charged, the lid closed, and the gas is being generated inthe retort, the sealing-cap D is raised, so that a free escape of gas isestablished, and thereby the quicker and more effective working of thebench obtained. The sealing-cap may also remain in submerged position inthe liquid, as the gas has suflicient pressure to force its way throughthe seal in the usual manner. hen, however, a sufficient generation ofgas takes place, then the sealing-cap is raised out of the liquid, sothat the free discharge of gas into the main takes place. The bench maythus be worked entirely under seal in the usual manner, while theretorts of another bench may be worked without sealing; or any retortmay be changed from the sealed to the unsealed condition in a fewmoments. As the dip-pipe is not extended above the hydraulic main andthen downward again into the same, but connected directly through thebottom of the main and extended upward in the same, a considerablesaving in the length of the dip-pipe may be made and the gas conductedinto the main in an easier manner, as the angles-of the pipes and notoblique, as in the dip-pipes heretofore in use.

Having thus described my invention, I claim as newand desire to secureby Letters Patent- The combination, with a hydraulic main, of

is connected by a pivot-link, F with the lugs around which the same hasto pass are obtuse a dip-pipe extending t1] rough the bottom of Intestimony that I claim the foregoing as the same and above the level oftheliquidin my invention I have signed my name in presthe same, anim'erted cap above the upper l enee of two subscribing Witnesses.

open end of said dip-pipe, a U-shnvped 1'()(l,L lever pivoted to saidrod, agnide-pi iie extend- ROBER'I IIABER'LIIUR. ing from the top of themain into the liquid in the main, and a friction-spring interposedbetween the guide-rod and guide-pipe so as 1 \V itnesses:

PAU 1; GOEPEL,

to IQtilllltllO sealing-cap in any suitable posi- JOH N A. STRALE Y. [0tion, substantially as set forth.

